Types of abstracts. There are two types of abstracts: descriptive and informative. They have different aims, so as a consequence they have different components and styles. There is also a third type called critical, but it is rarely used.
Samsung Galaxy Note 7 smartphone has been banned from all aircraft in the United States. The US Transportation Department and other agencies have banned passengers from carrying on the devices or putting them inside checked baggage during flights.
Airline restrictions on Li-ion Battery transport. As of January 8th 2008 the TSA (transportation security authority) has some new restriction on transport of lithium batteries on aircraft. Basically they don't want large lithium batteries carried on aircraft because of the (remote, but real) possibility that they may catch fire.